electrochemical gradient

(redirected from Hydrogen gradient)
Also found in: Medical.

electrochemical gradient

[i‚lek·trō‚kem·i·kəl ′grād·ē·ənt]
(cell and molecular biology)
The combined effect of a solute's concentration gradient across a membrane and the electric charge gradient across the membrane (the membrane potential), which drives the solute to cross the membrane.